15 files changed, 23 insertions, 12 deletions

diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 53505422867c..9030c373ce67 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -44,6 +44,7 @@
 #include <linux/init.h>
 #include <linux/jiffies.h>
 #include <linux/random.h>
+#include <linux/scatterlist.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include "DAC960.h"
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index efab27fa1083..c8132d958795 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -37,6 +37,7 @@
 #include <linux/spinlock.h>
 #include <linux/blkdev.h>
 #include <linux/genhd.h>
+#include <linux/scatterlist.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 282a69558e8a..52dc5e131718 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -27,6 +27,7 @@
 #include <linux/hdreg.h>
 #include <linux/dma-mapping.h>
 #include <linux/completion.h>
+#include <linux/scatterlist.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 
diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c
index 25e113b50d86..3051e312fdc8 100644
--- a/drivers/ieee1394/dma.c
+++ b/drivers/ieee1394/dma.c
@@ -12,7 +12,7 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 
 #include "dma.h"
 
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index 3bda1df63cb6..49ce14d14a54 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -51,6 +51,7 @@
 #include <linux/unistd.h>
 #include <linux/byteorder/swab.h>
 #include <linux/pagemap.h>
+#include <linux/scatterlist.h>
 #include <linux/workqueue.h>
 #include <linux/mutex.h>
 #include <asm/uaccess.h>
diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c
index 0a18286279d3..9ab94a749d81 100644
--- a/drivers/media/video/videobuf-dma-sg.c
+++ b/drivers/media/video/videobuf-dma-sg.c
@@ -27,6 +27,7 @@
 #include <linux/pci.h>
 #include <linux/vmalloc.h>
 #include <linux/pagemap.h>
+#include <linux/scatterlist.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 000e6a919782..0f39c490f022 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -169,7 +169,7 @@ static inline char *mmci_kmap_atomic(struct mmci_host *host, unsigned long *flag
         struct scatterlist *sg = host->sg_ptr;
 
         local_irq_save(*flags);
-        return kmap_atomic(sg->page, KM_BIO_SRC_IRQ) + sg->offset;
+        return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
 }
 
 static inline void mmci_kunmap_atomic(struct mmci_host *host, void *buffer, unsigned long *flags)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0db837e44b77..d7c5b94d8c58 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -13,6 +13,7 @@
 #include <linux/highmem.h>
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
 
 #include <linux/mmc/host.h>
 
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 90d64a808464..8bdaa157ffe7 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -11,9 +11,9 @@
 #include <linux/timer.h>
 #include <linux/ctype.h>
 #include <linux/device.h>
+#include <linux/scatterlist.h>
 #include <linux/usb/quirks.h>
 #include <asm/byteorder.h>
-#include <asm/scatterlist.h>
 
 #include "hcd.h"        /* for usbcore internals */
 #include "usb.h"
diff --git a/include/asm-xtensa/dma-mapping.h b/include/asm-xtensa/dma-mapping.h
index 82b03b3a2ee6..8bd9d2c02a24 100644
--- a/include/asm-xtensa/dma-mapping.h
+++ b/include/asm-xtensa/dma-mapping.h
@@ -58,11 +58,10 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
         BUG_ON(direction == DMA_NONE);
 
         for (i = 0; i < nents; i++, sg++ ) {
-                BUG_ON(!sg->page);
+                BUG_ON(!sg_page(sg));
 
-                sg->dma_address = page_to_phys(sg->page) + sg->offset;
-                consistent_sync(page_address(sg->page) + sg->offset,
-                                sg->length, direction);
+                sg->dma_address = sg_phys(sg);
+                consistent_sync(sg_virt(sg), sg->length, direction);
         }
 
         return nents;
@@ -128,8 +127,7 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
 {
         int i;
         for (i = 0; i < nelems; i++, sg++)
-                consistent_sync(page_address(sg->page) + sg->offset,
-                                sg->length, dir);
+                consistent_sync(sg_virt(sg), sg->length, dir);
 }
 
 static inline void
@@ -138,8 +136,7 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
 {
         int i;
         for (i = 0; i < nelems; i++, sg++)
-                consistent_sync(page_address(sg->page) + sg->offset,
-                                sg->length, dir);
+                consistent_sync(sg_virt(sg), sg->length, dir);
 }
 static inline int
 dma_mapping_error(dma_addr_t dma_addr)
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 42daf5e15265..df7ddcee7c4b 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -41,6 +41,11 @@ static inline void sg_set_page(struct scatterlist *sg, struct page *page)
 {
         unsigned long page_link = sg->page_link & 0x3;
 
+        /*
+         * In order for the low bit stealing approach to work, pages
+         * must be aligned at a 32-bit boundary as a minimum.
+         */
+        BUG_ON((unsigned long) page & 0x03);
 #ifdef CONFIG_DEBUG_SG
         BUG_ON(sg->sg_magic != SG_MAGIC);
 #endif
diff --git a/include/media/saa7146.h b/include/media/saa7146.h
index cd3ff2c29d5e..88b2b5a619aa 100644
--- a/include/media/saa7146.h
+++ b/include/media/saa7146.h
@@ -12,6 +12,7 @@
 #include <asm/io.h>             /* for accessing devices */
 #include <linux/stringify.h>
 #include <linux/mutex.h>
+#include <linux/scatterlist.h>
 
 #include <linux/vmalloc.h>      /* for vmalloc() */
 #include <linux/mm.h>           /* for vmalloc_to_page() */
diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c
index c796661a021b..811777682e2b 100644
--- a/net/ieee80211/ieee80211_crypt_tkip.c
+++ b/net/ieee80211/ieee80211_crypt_tkip.c
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/random.h>
+#include <linux/scatterlist.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/mm.h>
diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c
index 0af6103d715c..9693429489ed 100644
--- a/net/ieee80211/ieee80211_crypt_wep.c
+++ b/net/ieee80211/ieee80211_crypt_wep.c
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/random.h>
+#include <linux/scatterlist.h>
 #include <linux/skbuff.h>
 #include <linux/mm.h>
 #include <asm/string.h>
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index cc806d640f7a..a84a23310ff4 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -16,7 +16,7 @@
 #include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/mm.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"